DTC P1117[AJ (3.0L Duratec)]


id0102a4822500

DTC P1117

ECT circuit performance problem

DETECTION CONDITION
•  Indicates ECT sensor signal was intermittent.
POSSIBLE CAUSE
•  ECT sensor malfunction
•  Poor connection at ECT sensor or PCM connector
•  PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
•  Has FREEZE FRAME DATA been recorded?
Yes
Go to next step.
No
Record FREEZE FRAME DATA on repair order, then go to next step.
2
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
•  Check for related Service Information availability.
•  Is any related Service Information available?
Yes
Perform repair or diagnosis according to available Service Information.
•  If vehicle is not repaired, go to next step.
No
Go to next step.
3
INSPECT ECT SENSOR CONNECTOR FOR POOR CONNECTION
•  Turn the ignition switch off.
•  Disconnect ECT sensor connector.
•  Check for poor connection (damaged, pulled-out pins, corrosion, etc.).
•  Are there any malfunctions?
Yes
Repair or replace terminal, then go to Step 6.
No
Go to next step.
4
INSPECT ECTSENSOR
•  Is IAT sensor normal?
Yes
Replace ECT sensor, then go to Step 6.
No
Go to next step.
5
INSPECT PCM CONNECTOR FOR POOR CONNECTION
•  Disconnect PCM connector.
•  Check for poor connection (damaged, pulled-out pins, corrosion, etc.).
•  Are there any malfunction?
Yes
Repair or replace terminal, then go to Step 6.
No
Go to next step.
6
VERIFY TROUBLESHOOTING OF DTC P1117 COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Clear DTC from PCM memory using M-MDS.
•  Start engine and run engine under FREEZE FRAME DATA condition.
•  Is PENDING CODE of same DTC present?
Yes
Replace PCM, then go to next step.
No
Go to next step.
7
VERIFY AFTER REPAIR PROCEDURE
•  Perform "AFTER REPAIR PROCEDURE".
•  Are any DTCs present?
Yes
Go to applicable DTC inspection.
No
Troubleshooting completed.